It all started with squeaky brakes. I pulled the wheels, cleaned with air and brake cleaner. One seemed slightly warped so I had them turned.

Squeak goes away but now I get a slight screech rubbing sound. It goes away when I turn the wheel or apply the brakes... The calipers are still warrantied so I replace them. Still had a noise, kinda hard to describe it though but kinda sounds like the pad clip is rubbing on something. I go ahead and replace the rubber lines as well, bleed again till I get solid fluid and still got a noise going on and brakes work but dont feel quit right. Like I should have more pedal.

If I start the motor with the brakes applied, they do go down a little when the vacuum hits the booster.

I replaced the master cylinder less than 2 years ago, rotors are less than 2 years old but were turned last week. It doesnt seem to pull to any side, I am not loosing fluid that I can see...

Calgon take me away :?

Anyone have any ideas? Jerry Garcia said...

Constantly choosing the lesser of two evils is still choosing evil..

I mean, whatever kills you kills you, and your death is authentic no matter how you die.

And as far as I'm concerned, it's like I say, drugs are not the problem. Other stuff is the problem.I think it's too bad that everybody's decided to turn on drugs, I don't think drugs are the problem. Crime is the problem. Cops are the problem. Money's the problem. But drugs are just drugs.

I repacked bearings which are less than 18 months old, last week when I did the rotors.

Also, the bearings had been repacked at least 3 times total in their 18 month life, the grease always looked good and no scuff marks on the rollers. And last week when packing and inspection, they looked fine. But that doesnt mean a lot since Im not the best when it comes to noticing the obvious lol

[ Edited Mon Apr 25 2011, 08:53PM ]Jerry Garcia said...

Constantly choosing the lesser of two evils is still choosing evil..

I mean, whatever kills you kills you, and your death is authentic no matter how you die.

And as far as I'm concerned, it's like I say, drugs are not the problem. Other stuff is the problem.I think it's too bad that everybody's decided to turn on drugs, I don't think drugs are the problem. Crime is the problem. Cops are the problem. Money's the problem. But drugs are just drugs.

I dont have shims behind the pads, didnt come with any. It kinda sounds like the anti vibration clip but I dont see anywhere on the rotor that looks like its been rubbing. I did wonder if maybe the rust in rotor edge was too coarse and rough to show as compared to the smooth, thiner metal of the clips. Jerry Garcia said...

Constantly choosing the lesser of two evils is still choosing evil..

I mean, whatever kills you kills you, and your death is authentic no matter how you die.

And as far as I'm concerned, it's like I say, drugs are not the problem. Other stuff is the problem.I think it's too bad that everybody's decided to turn on drugs, I don't think drugs are the problem. Crime is the problem. Cops are the problem. Money's the problem. But drugs are just drugs.

Get some of the shims for behind the pads and use either the anti squeal on them or i just use some permatex. The anti vibration clip does not rub on anything just keeps the pads from vibrating and touching the rotor. You may can get by without the plates behind the pads and just put a dab of blue silicon on the back of the pads where the caliper piston comes in contact with them. The memories of a man in his old age, are the deeds of a man in his prime.

My pads didnt come with the shims so dont have any but gonna check a few local dub-heads and see if they have any spares.

Its definitely something rubbing because you hear it with each wheel revolution. Jerry Garcia said...

Constantly choosing the lesser of two evils is still choosing evil..

I mean, whatever kills you kills you, and your death is authentic no matter how you die.

And as far as I'm concerned, it's like I say, drugs are not the problem. Other stuff is the problem.I think it's too bad that everybody's decided to turn on drugs, I don't think drugs are the problem. Crime is the problem. Cops are the problem. Money's the problem. But drugs are just drugs.

The RTV on back of the pads should do the trick. One other thing, you are bleeding according to Bentley, right? Right front, left front, right rear, left rear? I know it's odd, but the way the master cylinder is valved makes this sequence neccesary. 1977 Westfalia P27

I took the retaining clips off and grinded them down on the tabs that could be rubbing. I will report back when I get home from the test drive/food run

Thanks all for the input. Jerry Garcia said...

Constantly choosing the lesser of two evils is still choosing evil..

I mean, whatever kills you kills you, and your death is authentic no matter how you die.

And as far as I'm concerned, it's like I say, drugs are not the problem. Other stuff is the problem.I think it's too bad that everybody's decided to turn on drugs, I don't think drugs are the problem. Crime is the problem. Cops are the problem. Money's the problem. But drugs are just drugs.

Seems the noise is getting worse. Brakes work fine, bus stops on a dime and doesnt pull when doing so. Im not loosing fluid BUT... Now every once in a while, when you apply the brakes for the first time after stopping. You sometimes get a rubbing clunk or pop, kinda like the pads are shifting as they grab the rotter. Its just one pop or clunk until you completely stop and then only get it the first time brakes are applied.

GRRRRRRR!!!!!!!! Jerry Garcia said...

Constantly choosing the lesser of two evils is still choosing evil..

I mean, whatever kills you kills you, and your death is authentic no matter how you die.

And as far as I'm concerned, it's like I say, drugs are not the problem. Other stuff is the problem.I think it's too bad that everybody's decided to turn on drugs, I don't think drugs are the problem. Crime is the problem. Cops are the problem. Money's the problem. But drugs are just drugs.

If all else fails, jack the front up and turn the wheel and get it to make the noise. Then pull the rim off and try it. Check to see if there's a line running around the inside of your rim- like where the clip that holds the brake pads in might rub if it was still a little proud of the brake pad. I know you ground 'em but I had that happen once, drove me nuts for a week until I noticed that line! Had to bend the clip with needle-nose-pliers to get it to clear. Good luck.

"It's not that I'm any smarter than anyone else, I just stay with a problem longer" -Albert Einstein Never trust a man in a blue trench coat, never drive a car when you're dead.DFV

What really sucks is there are no dub-heads around local to help. If I were at a campout it would be fixed in time for the pre-dinner drink bell lol

I drowned my brake woes in a bottle of vodka so am getting a later than expected start.

I had not thought to check the inner rim area, Ill be kicking myself hard if its in there :?

Im thinking loose sticking caliper, it doesnt make a noise pulling out or stopping while in reverse. Ill be checking the shocks too but would think a lot more pops/clunks if that were the case.

Will report in soon... Jerry Garcia said...

Constantly choosing the lesser of two evils is still choosing evil..

I mean, whatever kills you kills you, and your death is authentic no matter how you die.

And as far as I'm concerned, it's like I say, drugs are not the problem. Other stuff is the problem.I think it's too bad that everybody's decided to turn on drugs, I don't think drugs are the problem. Crime is the problem. Cops are the problem. Money's the problem. But drugs are just drugs.

All bolts are tight, shocks, calipers, etc.No wear or rubbing patterns in the backside of the wheels and with the brake dust back there I think it would be a noticeable thing.

Only thing I did notice... The inner side of each caliper has a slight space between the pad and the rotor. Kinda like the piston isnt pushing out far enough.

New calipers so as soon as I get a "helper" Im gonna bleed the crap out of the brakes and see where that gets me :?Im fighting the weather though, 20 mph winds and the storm is on its way, good help is hard to find around my house lol Jerry Garcia said...

Constantly choosing the lesser of two evils is still choosing evil..

I mean, whatever kills you kills you, and your death is authentic no matter how you die.

And as far as I'm concerned, it's like I say, drugs are not the problem. Other stuff is the problem.I think it's too bad that everybody's decided to turn on drugs, I don't think drugs are the problem. Crime is the problem. Cops are the problem. Money's the problem. But drugs are just drugs.

Bleed at least one tank full through the lines, solid fluid at all wheels with no spitting or sputtering.

Problem seems to be for whatever reason, the pistons on the backside of the rotors will not fully extend or they are too short or something strange like shrinkage lol

These are both brand new (rebuilt) calipers, less than 2 weeks old. Rubber lines less than 1 week old.

ANY ideas? I am totaly lost...

Only thing I know to try is just remove calipers and compress the pistons back into the calipers and start over :? Jerry Garcia said...

Constantly choosing the lesser of two evils is still choosing evil..

I mean, whatever kills you kills you, and your death is authentic no matter how you die.

And as far as I'm concerned, it's like I say, drugs are not the problem. Other stuff is the problem.I think it's too bad that everybody's decided to turn on drugs, I don't think drugs are the problem. Crime is the problem. Cops are the problem. Money's the problem. But drugs are just drugs.

All bolts are tight, shocks, calipers, etc.No wear or rubbing patterns in the backside of the wheels and with the brake dust back there I think it would be a noticeable thing.

Only thing I did notice... The inner side of each caliper has a slight space between the pad and the rotor. Kinda like the piston isnt pushing out far enough.

New calipers so as soon as I get a "helper" Im gonna bleed the crap out of the brakes and see where that gets me :?Im fighting the weather though, 20 mph winds and the storm is on its way, good help is hard to find around my house lol

Dun Dun Dun Dun Daaaa!It wasnt a issue with the calipers After waiting for new ones, reinstalling, bleeding for an hour... The calipers still are not pushing out all the way.

Yesterday I picked up a new MC to replace the one that is less than 2 years old.... Today we will see if that fixes it Jerry Garcia said...

Constantly choosing the lesser of two evils is still choosing evil..

I mean, whatever kills you kills you, and your death is authentic no matter how you die.

And as far as I'm concerned, it's like I say, drugs are not the problem. Other stuff is the problem.I think it's too bad that everybody's decided to turn on drugs, I don't think drugs are the problem. Crime is the problem. Cops are the problem. Money's the problem. But drugs are just drugs.